<SEC-DOCUMENT>0001137774-26-000159.txt : 20260717
<SEC-HEADER>0001137774-26-000159.hdr.sgml : 20260717
<ACCEPTANCE-DATETIME>20260717132036
ACCESSION NUMBER:		0001137774-26-000159
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260715
FILED AS OF DATE:		20260717
DATE AS OF CHANGE:		20260717

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PRUDENTIAL INSURANCE CO OF AMERICA
		CENTRAL INDEX KEY:			0000729057
		STANDARD INDUSTRIAL CLASSIFICATION:	LIFE INSURANCE [6311]
		ORGANIZATION NAME:           	02 Finance
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-21462
		FILM NUMBER:		261182943

	BUSINESS ADDRESS:	
		STREET 1:		PRUDENTIAL PLAZA
		STREET 2:		751 BROAD STREET
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102-3777
		BUSINESS PHONE:		(973) 802-5037

	MAIL ADDRESS:	
		STREET 1:		751 BROAD STREET
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PRUCO LIFE INSURANCE CO
		CENTRAL INDEX KEY:			0000777917
		STANDARD INDUSTRIAL CLASSIFICATION:	LIFE INSURANCE [6311]
		ORGANIZATION NAME:           	02 Finance
		STATE OF INCORPORATION:			AZ
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-21462
		FILM NUMBER:		261182942

	BUSINESS ADDRESS:	
		STREET 1:		213 WASHINGTON ST
		STREET 2:		111 DURHAM AVENUE
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102
		BUSINESS PHONE:		2018026000

	MAIL ADDRESS:	
		STREET 1:		213 WASHINGTON STREET
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PRUDENTIAL FINANCIAL INC
		CENTRAL INDEX KEY:			0001137774
		STANDARD INDUSTRIAL CLASSIFICATION:	LIFE INSURANCE [6311]
		ORGANIZATION NAME:           	02 Finance
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-21462
		FILM NUMBER:		261182944

	BUSINESS ADDRESS:	
		STREET 1:		751 BROAD ST
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102
		BUSINESS PHONE:		9738026000

	MAIL ADDRESS:	
		STREET 1:		751 BROAD ST
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TORTOISE ENERGY INFRASTRUCTURE CORP
		CENTRAL INDEX KEY:			0001268533
		ORGANIZATION NAME:           	
		EIN:				000000000
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1130

	BUSINESS ADDRESS:	
		STREET 1:		5901 COLLEGE BOULEVARD
		STREET 2:		SUITE 400
		CITY:			OVERLAND PARK
		STATE:			KS
		ZIP:			66211
		BUSINESS PHONE:		913-981-1020

	MAIL ADDRESS:	
		STREET 1:		5901 COLLEGE BOULEVARD
		STREET 2:		SUITE 400
		CITY:			OVERLAND PARK
		STATE:			KS
		ZIP:			66211
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-07-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001268533</issuerCik>
        <issuerName>TORTOISE ENERGY INFRASTRUCTURE CORP</issuerName>
        <issuerTradingSymbol>tyg</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001137774</rptOwnerCik>
            <rptOwnerName>PRUDENTIAL FINANCIAL INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>751 BROAD ST</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEWARK</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07102</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000729057</rptOwnerCik>
            <rptOwnerName>PRUDENTIAL INSURANCE CO OF AMERICA</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>751 BROAD STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEWARK</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07102</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000777917</rptOwnerCik>
            <rptOwnerName>PRUCO LIFE INSURANCE CO</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>213 WASHINGTON STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEWARK</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07102</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Series K Mandatory Redeemable Preferred Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-07-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3000000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>10</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3000000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By The Prudential Insurance Company of America, a wholly-owned subsidiary of the Reporting Person</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Series L Mandatory Redeemable Preferred Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-07-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3000000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>10</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3000000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By PRUCO Life Insurance Company, a wholly-owned subsidiary of the Reporting Person</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Preferred stock owned by The Prudential Insurance Company of America, indirectly owned by Prudential Financial, Inc., its parent holding company and a ten percent owner of a class.</footnote>
        <footnote id="F2">Preferred stock owned by PRUCO Life Insurance Company, indirectly owned by Prudential Financial, Inc., its parent holding company and a ten percent owner of a class.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Prudential Financial, Inc., By: /s/ Richard Baker, Second Vice President</signatureName>
        <signatureDate>2026-07-16</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>The Prudential Insurance Company of America, By: PGIM, Inc., as Investment Manager, By: /s/ Aaron Christopherson, Vice President</signatureName>
        <signatureDate>2026-07-16</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>PRUCO Life Insurance Company, By: PGIM, Inc., as Investment Manager, , By: /s/ Aaron Christopherson, Vice President</signatureName>
        <signatureDate>2026-07-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
